250 AMERICAN NEUROPTERA 



tibiae; seta 1 annulate with brown, rather broadly at base; vitta of wing much 

 broken up into spots, three larger than others, basal costal space hyaline, but 

 along the costa are scattered brown dots; on apical part of wing and along outer 

 margin are many more, or less distinct clouds, usually around veins; about 

 twenty-two cross-veius beyond vitta, some of them white, but one posterior series. 

 Length 8 mm. 



4 



Near Tacubaya, D. F., Mexico (Barrett). Eaton records it from 

 Texas, California and various places in Mexico. 



< allihii'li* tessellatus Hag. 



Hagen, Syn. Neur. N. Amer., p. 50 (1861). 



C. hageni Eaton, Riv. Mon. Ephem.. p. 192 (1884). 



Dark brown, femora but little dotted with brown, setae narrowly annulate with 

 brown ; vitta of wing dark brown, including the basal costal space, broader at 

 hase, hind edge with three broad and deep indentations, and several smaller 

 toward tip, the vitta in second lobe extends back on the wing for some distance 

 (farther than in other species), along the costal area are a number of hyaline 

 spots; along veins are many short, narrow brown clouds: many cross-veins 

 beyond vitta, many of them white, two irregular series of posterior cross-veins. 



Length 8 mm. ; expanse 17 mm. 



Tacoina, Washington, Sept. (A. P. Morse) ; California, according 

 to Eaton. 



C'allibtetis americanus n. sp. 



Very dark brown, almost black ; femora thickly dotted with brown ; tarsi and 

 setae marked with brown ; vitta of wing dark brown, broader at base, hind edge 

 quite even, with three principal indentations, usually quite narrow, costal area 

 with hyaline spots, no clouds along the veins; many cross veins, mostly white; 

 two quite regular series of posterior cross-veins; base of hind wing often brown. 



Length 7.5 mm. 



Pullman, Washington, April (R. W. Doane), also one from Clear 

 Creek, Colorado, September (Oslar). A specimen from Franconia, 

 N. H. (Mrs. Slosson), seems to fall here, but the vitta is not well 

 developed. 



Callibwtis eoloradensis n. sp. 



Dark brown ; femora finely dotted with brown ; tarsi tipped with brown ; vitta 

 of wing dark brown, broken up into three principal spots, one, the largest, apical, 

 one pterostiguiatical, one before the middle, and a smaller one at base; basal cos- 

 tal space hyaline; the longitudinal veins are in places slightly marked with 

 brown; the cross-veins are numerous, mostly white; two irregular posterior 

 series; the abdomen is shorter than in the other species of this section. 



Length 7 mm. ; expanse 16 mm. 



Durango, Colorado, June (Oslar). 



Callibwtis ferragineus Walsh. 



Walsh, Proc. Acad. Nat. Sci. Phil., 1862. p. 379. 

 Ferruginous; femora thickly spotted with light brown, tarsi and seta? marked 



TRANS. AM. KNT. SOC. XXVI. MAY, 1900. 



